https://www.infopathdev.com:443/blogs/ernesto/archive/2014/01/10/sharepoint-changes-dbxl-app-pool-assignment.aspxOver the years we've noticed that SharePoint updates may sometimes interfere with DBXL. Typically, correcting the DBXL App Pool identity and/or performing an iisreset fixes the issue. We've noticed, however, that even adding a new web applicationenCommunityServer 2007 SP3 (Build: 31118.962)